Mabel Lake is a lake located in southern Interior British Columbia, Canada, that is fed by and drained by the Shuswap River. It is located southeast of Shuswap Lake, northeast of Okanagan Lake, and west of the Monashee Mountains, and is popular for camping and fishing. The area around the lake is mountainous and sparsely populated. Mabel Lake Provincial Park is situated on the southeastern shore of the lake, about 35 kilometers from the village of Lumby on Lumby-Mabel Lake Road. The road is paved and passes by Shuswap Falls Recreation Area.